[Rails] Unable to run "system" tests in Rails 5.2 when using WSL (Windows Subsystem for Linux)

Ruby on Rails Wednesday, September 26, 2018

I'm currently using WSL on Windows 10 for developing in Rails.  So far I've never had any issues, but noticed I'm unable to run "system" tests.  

For testing I've done the following:

  • "rails new sample" (created a new rails 5.2 app called sample)
  • "rails generate scaffold user first_name:string last_name:string" (created resource for running system tests)
  • rails test test/system/users_test.rb (this command produced the following)

daveomcd@LAPTOP-GDA9LTDQ:~/rails_projects/sample$ rails test test/system/users_test.rb
Running via Spring preloader in process 2613
/home/daveomcd/.rvm/gems/ruby-2.4.2/gems/spring-2.0.2/lib/spring/application.rb:185: warning: Insecure world writable dir /home/daveomcd/.rvm/gems/ruby-2.4.2/bin in PATH, mode 040777
Run options: --seed 35177


# Running:


E


Error:
UsersTest#test_destroying_a_User:
Selenium::WebDriver::Error::UnknownError: unknown error: Chrome failed to start: exited abnormally
  (unknown error: DevToolsActivePort file doesn't exist)
  (The process started from chrome location /usr/bin/chromium-browser is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
  (Driver info: chromedriver=2.42.591071 (0b695ff80972cc1a65a5cd643186d2ae582cd4ac),platform=Linux 4.4.0-17134-Microsoft x86_64)
    test/system/users_test.rb:38:in `block in <class:UsersTest>'


Error:
UsersTest#test_destroying_a_User:
Selenium::WebDriver::Error::UnknownError: unknown error: Chrome failed to start: exited abnormally
  (unknown error: DevToolsActivePort file doesn't exist)
  (The process started from chrome location /usr/bin/chromium-browser is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
  (Driver info: chromedriver=2.42.591071 (0b695ff80972cc1a65a5cd643186d2ae582cd4ac),platform=Linux 4.4.0-17134-Microsoft x86_64)






bin/rails test test/system/users_test.rb:37


E


Error:
UsersTest#test_creating_a_User:
Selenium::WebDriver::Error::UnknownError: unknown error: Chrome failed to start: exited abnormally
  (unknown error: DevToolsActivePort file doesn't exist)
  (The process started from chrome location /usr/bin/chromium-browser is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
  (Driver info: chromedriver=2.42.591071 (0b695ff80972cc1a65a5cd643186d2ae582cd4ac),platform=Linux 4.4.0-17134-Microsoft x86_64)
    test/system/users_test.rb:14:in `block in <class:UsersTest>'


Error:
UsersTest#test_creating_a_User:
Selenium::WebDriver::Error::UnknownError: unknown error: Chrome failed to start: exited abnormally
  (unknown error: DevToolsActivePort file doesn't exist)
  (The process started from chrome location /usr/bin/chromium-browser is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
  (Driver info: chromedriver=2.42.591071 (0b695ff80972cc1a65a5cd643186d2ae582cd4ac),platform=Linux 4.4.0-17134-Microsoft x86_64)






bin/rails test test/system/users_test.rb:13


E


Error:
UsersTest#test_updating_a_User:
Selenium::WebDriver::Error::UnknownError: unknown error: Chrome failed to start: exited abnormally
  (unknown error: DevToolsActivePort file doesn't exist)
  (The process started from chrome location /usr/bin/chromium-browser is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
  (Driver info: chromedriver=2.42.591071 (0b695ff80972cc1a65a5cd643186d2ae582cd4ac),platform=Linux 4.4.0-17134-Microsoft x86_64)
    test/system/users_test.rb:26:in `block in <class:UsersTest>'


Error:
UsersTest#test_updating_a_User:
Selenium::WebDriver::Error::UnknownError: unknown error: Chrome failed to start: exited abnormally
  (unknown error: DevToolsActivePort file doesn't exist)
  (The process started from chrome location /usr/bin/chromium-browser is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
  (Driver info: chromedriver=2.42.591071 (0b695ff80972cc1a65a5cd643186d2ae582cd4ac),platform=Linux 4.4.0-17134-Microsoft x86_64)






bin/rails test test/system/users_test.rb:25


E


Error:
UsersTest#test_visiting_the_index:
Selenium::WebDriver::Error::UnknownError: unknown error: Chrome failed to start: exited abnormally
  (unknown error: DevToolsActivePort file doesn't exist)
  (The process started from chrome location /usr/bin/chromium-browser is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
  (Driver info: chromedriver=2.42.591071 (0b695ff80972cc1a65a5cd643186d2ae582cd4ac),platform=Linux 4.4.0-17134-Microsoft x86_64)
    test/system/users_test.rb:9:in `block in <class:UsersTest>'


Error:
UsersTest#test_visiting_the_index:
Selenium::WebDriver::Error::UnknownError: unknown error: Chrome failed to start: exited abnormally
  (unknown error: DevToolsActivePort file doesn't exist)
  (The process started from chrome location /usr/bin/chromium-browser is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
  (Driver info: chromedriver=2.42.591071 (0b695ff80972cc1a65a5cd643186d2ae582cd4ac),platform=Linux 4.4.0-17134-Microsoft x86_64)






bin/rails test test/system/users_test.rb:8






Finished in 22.996091s, 0.1739 runs/s, 0.0000 assertions/s.
4 runs, 0 assertions, 0 failures, 4 errors, 0 skips

Can anyone tell me if this is a WSL issue? Or if I'm doing anything wrong?  I'm struggling on options to debug, troubleshoot this issue.  Thanks!

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Posted by Ruby on Rails at 4:52 PM

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